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Interactions médicamenteuses

Dacomitinib + Omeprazole

Gravité: Majeure

Dacomitinib and Omeprazole: major interaction.

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Résumé

Omeprazole lowers dacomitinib concentrations, which may reduce its antitumour efficacy. Dacomitinib absorption depends on gastric acidity.

Ce que signifie cette interaction, en termes simples

Dacomitinib and Omeprazole can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Dacomitinib belongs to Oncology; Omeprazole belongs to Gastrointestinal Tract.

Niveau de preuve: High

Pourquoi elle survient

Increased gastric pH reduces dacomitinib solubility and absorption.

Conduite à tenir

Avoid PPIs with dacomitinib. If acid suppression is needed, use a locally acting antacid or an H2 antagonist, dosing dacomitinib at least 6 hours before or 10 hours after the H2 blocker.

Questions à poser à votre pharmacien

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Questions fréquentes

Can I take Dacomitinib with Omeprazole?

MediHelp rates the interaction as major. Dacomitinib and Omeprazole can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Omeprazole lowers dacomitinib concentrations, which may reduce its antitumour efficacy. Dacomitinib absorption depends on gastric acidity.

How serious is the interaction between Dacomitinib and Omeprazole?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid PPIs with dacomitinib. If acid suppression is needed, use a locally acting antacid or an H2 antagonist, dosing dacomitinib at least 6 hours before or 10 hours after the H2 blocker.

What other medicines interact with Omeprazole?

MediHelp also lists interactions of Omeprazole with, for example, Mavacamten, Rilpivirine, Acalabrutinib. The full list is on the Omeprazole page.

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Ouvrez le référentiel complet, vérifiez les interactions entre plusieurs médicaments et utilisez les outils de posologie dans l'application MediHelp.

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